Window-ventilator.



W. J. DIXON. WINDOW VBNTILATORJ APPLIOATION FILED MAR.19, 1913. 1,G?5,967, PatentedOct. 14, 1913.

2 SHEETS-SHEET 1.

w. J. DIXON. WINDOW VENTILATOE. APPLICATION FILED MAR. 19, 1913.

Patented Oct. 14, 1913.

2 SHEBTS-SHEETZ.

is PATEFZN WILLIAM J. DIXON, OF KANSAS CITY, MIS$OURL WINDOW-VENTILATOR.

Specification of Letters Patent.

Patented @ct. id, 1913.

Application filed March 19, 1913. Serial No. 755,327.

tilators, of which the following is a specification.

This invention relates to window ventilators, and especially 'to ventilators adapted for use with windows of railway cars, where it is necessary to protect the interior ofthe car from dust, smokeand cinders.

One object of the invention is to produce a ventilator which may be conveniently inserted in place in the sash groove of the car window, and adapted when not in use to be folded in compact form. Another object is to provide the ventilator with means for regulating. thesize-of the ventilating opening.

Another special object of the invention is the provision of a guard for the ventilating opening so arranged as to prevent any inrushing currents of air by the guards inclosing the opening except at the rear, so that the ventilation will take place, not by cold drafts entering the car from the outside through the ventilating opening at the window, but by suction of the warm air of the car outthrough the ventilator, the air entering the car at other points mainly through the overhead ventilators; in this way a circulation of the air is established that carries warm fresh air into each berth of the sleeping car, instead of cold air entering the window so that any disagreeable fall in the temperature ofthe berths is avoided. By this arrangementof'the guard is also attained another important object which is the exclusion" as far as possible of all dust, smoke and cinders, an end particularly desirable 'in connection with the windows of sleeping cars, for in the berths of sleepers great annoyance is caused by the dirt carried by'the air tliroug'hthe ventilators. Besides rendering the air impure and unwholsome, this dirt accumulates in the berth upon the passengers clothing and upon the furnishings of the car, and oftentimes sparks and hot cinders find their way inthrough the ventilators now in use, and do reat damage to the contents of the bert My guard will in a' large measure obviate-these troubles, thus adding greatly to the satisfaction and comfort of the passengers, as well as facilitating the work of keeping the car furnishings clean and also prolonging the life of the equipment by gliminating the damaging elfects of the ciners.

With these general objects in view, and such others as may appear during the course of the description, my invention comprises certain novel details of construction as set forthin the following specification taken in connection with the accompanying drawing, in which Figure l, is a perspective View of my improved ventilator; Fig. 2, is a longitudinal section therethrough; Fig. 3, is a cross section on the line TIL-III of Fig. 2; Fig. 4, is a plan view of the hinged ends of the sections of the ventilator in unfolded relat on and showing a portion of the dust-gu rd, and Fig. 5, is an edge view of the device folded.

' Referring to the drawings, the main body portion of my ventilator, comprises a. strip 1, made in two sections 2 and 4, hinged together at two points 6 and 8, thus adapting them to be folded when not in use, as well as to be inserted readily within the sash grooves 10, of the'car window. The free ends ofthe sections 2 and 4 are beveled off sufiiciently to enter the ordinary size of such groove, and suitably fitted within the edges of said sections are small rubber tubes 11, projecting so as to receive the bottom edge of the window sash .thereagainst, thus forming a tight closure.

The ventilating opening 12 is formed through the section l and is screened by a piece of wire fabric 14: of suitable mesh.

' This screen is mounted on the outside of the opening 12, and the edges of the opening are grooved, as shown at 15, for receiving a metal slide 16. provided with a finger loop 17, so that by manipulating the slide the size of the opening 12 may be regulated to suit the requirements. The section 2 has a channel 18 undercut at both sides to provide grooves 20 adapted to form continuation's of grooves 15 for receiving the slide.

It will be seen that when thersections are folded, with the slide held entirely within section 4, tendency may arise for the slide to move out of the grooves, and to guard against this I provide an angular spring re-,;' taining finger 22 on the outside of section 4 near its hinged end, being secured by a screw 25 near the hinge 6, and extending partly across the section'to an opening 24 communicating with the ventilating opening. The 'nnger extends normally just through this opening and not into the path of the slide, but as the sections are folded, the sec ion 2 compresses the spring arm of the finger, and causes the finger to extend on across the path of the slide so that the latter cannot be withdrawn while the sections remain folded.

For protecting the ventilating opening 12,

" I employ a bellows-shaped guard extending the whole length of said opening and taper-' mg toward the hinges 6 and 8, 1t being understood that the large or open end of the guard faces the rear of the train so that the smoke and cinders are deflected away from the opening T2 for the entire length thereof, and the current arising from the trains movement establishes a suction at the open end of the guard, causing the air to move outward from the car window, thus insuring still further exclusion of the impurities of the outside air.

The outer vertical member 28 of the guard tapers to the front and is constructed of thin material, for example galvanized sheet metal, and is hinged at its-front end to an out standing il-shaped bar 30 mounted in section t adjacent the hinges 6 and 8, The hinge connection of the member 28 with bar 30 is made by an under-lapping extension 32 of said -member forming a hinge opening for said bar and secured to the body of member 28 by rivets or equivalent fastenings 34. The upper and lower margins of the vertical member 28 have inwardly pro ect1ng flanges 36 and 38 to which to secure the outer edges of the upper andlower collapsible members so and of the guard, the inner edges of which are attached to the side edges of the section t above and below the opening 12. The collapsing members may be of any flexible fire-proofmaterial, such as asbestos, or

they may be made of overlapping plates slidingly connected so as to be extended" or collapsed in a manner well known. For securing the edges of the members 40 and 42 to the member 28 and section 41,1 preferably make use of binding strips 44 to cooperate in connection with rivets or equivalent fastening means -46.

in order to hold the guard extended when i folded. While the weight of the ventilators when stacked would keep the lower ones folded without any fastening means, I prefer to use hooks and screw-eyes 52 at thefree ends of the sections to secure them in folded relation.

From the foregoing it will be apparent that I have proddcecl a window ventilator possessing the features of advantage enumerated in the statement of the objects of the invention, and I wish it to be understood that while I have illustrated and described one form of'the invention,I reserve the right to make such changes as fall 'within the spirit and scope of the appended claims.

I claim I 1. In a window ventilator, a folding strip containing a ventilating opening, and a slide- Way adjacent said opening, a slide movable in said slideway to regulate thesize of the opening, and means operated by the folding of the strip to latch the slide in the slideway. 2. In, a window ventilator, a folding strip opening, and a spring retaining member carried by one section of the strip and movable into the slidew'ay to latch and retainthe slide therein, said retaining member being adapted to be compressed into operative position by the other section of the strip when said strip is folded.

3 In a Window ventilator, a striphaving a ventilating opening, a flaring-dust guard for protecting said opening, said dust guard comprising a strip of stifi material extend ing lengthwise. of the opening and having one end spaced from one end of said opening and its other end hinged to the, first-named strip adjacent the other end of the opening,

a tapered strip of flexible material secured to each side margin of said hinged str'ep and containing a ventilatingopening and a slide--- way ,adJLCQIllZ said opening, a slide movable in said slidewa-y to regulate the size of the at opposite sides of said opening, and yield ing means tending normally to hold said flexible strips extended.

4. In a Window venti tions having a ventilating opening,'a flaring dust guard for said opening comprising a strip of stiff material extendinglengthwise of the opening and having one end spaced from one end'ofsaid opening audits other end hinged adjacent the other end of the opening, a tapered strip of flexible material secured'to each side margin of said hinged strip and at opposite sides of said. openin means tending normally to hold saidv fiexibf strip extended, and'means for latching said .hihged sections in folded condition with the guard collapsed between them. 1

' 5. In a car window ventilator, a pair of hinged sections, one of said sections having'a ventilating opening provided with grooved s des, the other section being provided with later, a folding strip formed of hinged sections, one of said seca recess having grooves adapted to be alined In testimony whereof, 1 affix my Si with the grooves of said opening when said ture, in the presence of two witnesses. sectlons are unfolded, and a shde movable WELL} 1n sald grooves to regulate the 51% of the opemng and actlng, when 1t is extended mto Wltness esz v sald recess, to maintam the sectlons 1n un- HELEN G. Bosses,

folded condition. G. Y: Tnonsn Copies of this patent may be obtained for five cents each, by addressing the oi Washington, 3. 6'3. 

